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Installing a shower pump

hi i recently fitted one myself, it was pretty staight forward, all you need to remember is you cant pump from mains pressure(dont conect to the main cold supply where it comes in the house) conect to the cold water storage and the hot water cylinder. make the connections as close as poss to the cold and hot tanks to prevent air in your system
mat125

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Installing a shower pump

I bet the problem is this. Some old vic houses have the old metal pipes not copper. The corrode on the inside there by reducing the amount of water flowing through them. This could also be the case on the main water line feeding inside the house. I bet if you were to cut the main water feed inside your house you would see not 1 inch inside but less than a half because of the corrision. This is a typical problem on a old vic. Are the pipes metal or copper i'm betting the old metal.

Installing a shower pump

all cold taps should be mains pressure so dont tap into any of those. do you have a hot water cylinder in your airing cupboard, if so that is your hot supply, connect the hot off the branch pipe on top of the cylinder (its about 450mm long. just put a tee in the middle of that). the cold storage is usually above the hot water cylinder. tee off the down pipe from that.

Tap into the top of your hot water cylinder, buy an S Flange as this would make it even easier.

Tap into your cold water tank, this is usually located in the loft. Make sure your tapping is below the feed to your hot water cylinder, this prevents the cold water running out before the hot and you not being scolded in the shower.

Now you have the hot and cold feeds to your new shower pump, now from the shower pump take new feeds to your shower.